Butterflies and Moths of North America

collecting and sharing data about Lepidoptera

California Dogface
Zerene eurydice (Boisduval, 1855)


Family: Pieridae
Subfamily: Coliadinae
Identification: Black outer half of male forewing encloses yellow-orange "dog's head" tinged with light purple iridescence. Black "eye" very near or touching the border. Hindwing yellow-orange, sometimes with black border. Female all yellow with a black upper forewing cell spot; sometimes with scattered black scaling on outer half.
Wing Span: 2 - 2 1/2 inches (5.1 - 6.3 cm).
Life History: Males patrol for females.
Flight: Two flights from April-May and July-August.
Caterpillar Hosts: Usually false indigo (Amorpha californica) in the pea family (Fabaceae).
Adult Food: Flower nectar.
Habitat: Foothills, chaparral, oak or coniferous woodlands.
Range: North-central California south to Baja California, west of the central mountains and deserts.
Conservation: None usually required.
NCGR: G3 - Very rare or local throughout its range or found locally in a restricted range (21 to 100 occurrences). (Threatened throughout its range).
Management Needs: Not reported.
Comments: NULL

Pollinator Week is June 20-26, 2022!

Butterflies and moths are accidental pollinators of many flowering plants. While most species do not have special structures to carry pollen, they do brush against pollen and transfer it to other flowers.

Did you know? The Eastern Tailed-Blue (Cupido comyntas) flies close to the ground and uses its short proboscis to probe flowers of wild strawberry, white sweet clover, and other low-lying plants.